James Mitchell Tour is an American chemist and nanotechnologist. He is a Professor of Chemistry, Professor of Materials Science and Nanoengineering at Rice University in Houston, Texas.
Saturable absorption is a property of materials where the absorption of light decreases with increasing light intensity. Most materials show some saturable absorption, but often only at very high optical intensities. At sufficiently high incident light intensity, the ground state of a saturable absorber material is excited into an upper energy state at such a rate that there is insufficient time for it to decay back to the ground state before the ground state becomes depleted, causing the absorption to saturate. The key parameters for a saturable absorber are its wavelength range, its dynamic response, and its saturation intensity and fluence.
Conductive ink is an ink that results in a printed object which conducts electricity. It is typically created by infusing graphite or other conductive materials into ink. There has been a growing interest in replacing metallic materials with nanomaterials due to the emergence of nanotechnology. Among other nanomaterials, graphene, and carbon nanotube-based conductive ink are gaining immense popularity due to their high electrical conductivity and high surface area. Recently, more attention has been paid on using eco-friendly conductive ink using water as a solvent as compared to organic solvents since they are harmful to the environment. However, the high surface tension of water prevents its applicability. Various natural and synthetic surfactants are now used to reduce the surface tension of water and ensure uniform nanomaterials dispersibility for smooth printing and wide application. Although graphene oxide inks are eco-friendly and can be produced in bulk quantities, they are insulating in nature which needs an additional step of reduction using reducing ink is required to restore the electrical properties. The external reduction process is not suitable for large scale continuous manufacturing of electronic devices. Hence an in-situ reduction process also known as reactive inkjet printing has been developed by various scientists. In the in-situ reduction process the reducing inks are printed on top of the GO printed patterns in order to carry out the reduction process on the substrate.
Nanochemistry is an emerging sub-discipline of the chemical and material sciences that deals with the development of new methods for creating nanoscale materials. The term "nanochemistry" was first used by Ozin in 1992 as 'the uses of chemical synthesis to reproducibly afford nanomaterials from the atom "up", contrary to the nanoengineering and nanophysics approach that operates from the bulk "down"'. Nanochemistry focuses on solid-state chemistry that emphasizes synthesis of building blocks that are dependent on size, surface, shape, and defect properties, rather than the actual production of matter. Atomic and molecular properties mainly deal with the degrees of freedom of atoms in the periodic table. However, nanochemistry introduced other degrees of freedom that controls material's behaviors by transformation into solutions. Nanoscale objects exhibit novel material properties, largely as a consequence of their finite small size. Several chemical modifications on nanometer-scaled structures approve size dependent effects.
Nanobatteries are fabricated batteries employing technology at the nanoscale, particles that measure less than 100 nanometers or 10−7 meters. These batteries may be nano in size or may use nanotechnology in a macro scale battery. Nanoscale batteries can be combined to function as a macrobattery such as within a nanopore battery.
The Centre for Quantum Computation (CQC) is an alliance of quantum information research groups at the University of Oxford. It was founded by Artur Ekert in 1998.
Piezo-phototronic effect is a three-way coupling effect of piezoelectric, semiconductor and photonic properties in non-central symmetric semiconductor materials, using the piezoelectric potential (piezopotential) that is generated by applying a strain to a semiconductor with piezoelectricity to control the carrier generation, transport, separation and/or recombination at metal–semiconductor junction or p–n junction for improving the performance of optoelectronic devices, such as photodetector, solar cell and light-emitting diode. Prof. Zhong Lin Wang at Georgia Institute of Technology proposed the fundamental principle of this effect in 2010.
ACS Photonics is a monthly, peer-reviewed, scientific journal, first published in January 2014 by the American Chemical Society. The current editor in chief is Romain Quidant. The interdisciplinary journal publishes original research articles, letters, comments, reviews and perspectives.
Kwang Soo Kim is a South Korean professor in chemistry, an adjunct professor in physics, and the director of Center for Superfunctional Materials (CSM), of Ulsan National Institute of Science and Technology (UNIST) in South Korea. He received his B.S. and M.S. degrees in Applied Chemistry from Seoul National University and also an M.S. degree in Physics from Korea Advanced Institute of Science and Technology (KAIST) (1975). He obtained his Ph.D. degree from University of California, Berkeley (1982). His research fields include Theoretical/Computational Chemistry/Physics and Experimental Nanosciences.
Graphene is a 2D nanosheet with atomic thin thickness in terms of 0.34 nm. Due to the ultrathin thickness, graphene showed many properties that are quite different from their bulk graphite counterparts. The most prominent advantages are known to be their high electron mobility and high mechanical strengths. Thus, it exhibits potential for applications in optics and electronics especially for the development of wearable devices as flexible substrates. More importantly, the optical absorption rate of graphene is 2.3% in the visible and near-infrared region. This broadband absorption characteristic also attracted great attention of the research community to exploit the graphene-based photodetectors/modulators.
Junichiro Kono is a professor in the Departments of Electrical and Computer Engineering, Physics and Astronomy, and Materials Science and NanoEngineering, at Rice University.
Mahmooda Sultana is a Bangladeshi-American scientist working for NASA Goddard Space Flight Center. She leads a team which won a $2 million technology development award for a nanomaterial-based detector platform in 2019. Sultana became a NASA research engineer in 2010. She received her PhD in chemical engineering in 2010 from Massachusetts Institute of Technology and BSc in chemical engineering and mathematics from University of Southern California summa cum laude. She joined NASA Goddard Space Flight Center in 2010. She has led the development of graphene-based detectors at NASA Goddard. Her research interests include graphene, nanomaterials, micro-electro-mechanical systems (MEMs) devices, and sensors.
Cinzia Casiraghi is a Professor of Nanoscience in the Department of Chemistry at the University of Manchester and National Graphene Institute in the UK.
Andrea Carlo Ferrari is a professor of nanotechnology at the University of Cambridge.
Caterina Ducati is a Professor of Nanomaterials in the Department of Materials at the University of Cambridge. She serves as Director of the University of Cambridge Master's programme in Micro- and Nanotechnology Enterprise as well as leading teaching in the Nanotechnology Doctoral Training Centre.
Sharon M. Weiss is an American professor of electrical engineering and physics at Vanderbilt University. Weiss has been awarded a Presidential Early Career Award for Scientists and Engineers (PECASE), an NSF CAREER award, an ARO Young Investigator Award, and the 2016–2017 IEEE Photonics Society Distinguished Lecturer award for her teaching and fundamental and applied research on silicon-based optical biosensing, silicon photonics for optical communication, and hybrid and nanocomposite material systems. She is the Cornelius Vanderbilt Chair in Engineering at Vanderbilt University, in addition to the Director of the Vanderbilt Institute of Nanoscale Science and Engineering (VINSE).
Vikas Berry is an Indian-American scientist, engineer, and academic. He is a professor and department head of chemical engineering at the University of Illinois Chicago. He conducts research and develops technologies in the areas of bionanotechnology and two-dimensional materials. He holds the Dr. Satish C. Saxena professorship at University of Illinois Chicago and held the William H. Honstead endowed professorship at the Kansas State University from 2011 to 2014.
Hannah J. Joyce is an Australian scientist and engineer, and a professor at the Department of Engineering at the University of Cambridge. Her research specialises in the development of new nanomaterials for applications in optoelectronics and energy harvesting. She has received several awards for her work in nanowire engineering and terahertz photonics.
Emilie Ringe is an American chemist who is an assistant professor at the University of Cambridge. She was selected by Chemical & Engineering News as one of its "Talented Twelve" young scientists in 2021.
Baohua Jia is a Chinese-Australian nanotechnologist and photonics researcher specializing in the absorption and emission of light by nanomaterials and the development of nanomaterials for plasmonic solar cells, solar thermal collectors, and radiative cooling. Her research has also concerned ultra-thin graphene-based flat lenses, graphene oxide supercapacitor batteries, laser nanoprinters, and "atomaterials", a word coined by Jia for the atomic-level building blocks of nanomaterials. She is a professor and ARC Future Fellow at RMIT University, where she directs the Center for Atomaterials Sciences and Technology.
